1	#!/bin/bash
2
3	#### trap -l
4	trap -l | grep INT >/dev/null
5	## status: 0
6	## N-I dash/mksh status: 1
7
8	#### trap 'echo hi' KILL (regression test, caught by smoosh suite)
9	trap 'echo hi' 9
10	echo status=$?
11	trap 'echo hi' KILL
12	echo status=$?
13	trap 'echo hi' STOP
14	echo status=$?
15	trap 'echo hi' TERM
16	echo status=$?
17	## STDOUT:
18	status=0
19	status=0
20	status=0
21	status=0
22	## END
23	## OK osh STDOUT:
24	status=1
25	status=1
26	status=1
27	status=0
28	## END
29
30	#### trap -p
31	trap 'echo exit' EXIT
32	trap -p | grep EXIT >/dev/null
33	## status: 0
34	## N-I dash/mksh status: 1
35
36	#### Register invalid trap
37	trap 'foo' SIGINVALID
38	## status: 1
39
40	#### Remove invalid trap
41	trap - SIGINVALID
42	## status: 1
43
44	#### SIGINT and INT are aliases
45	trap - SIGINT
46	echo $?
47	trap - INT
48	echo $?
49	## STDOUT:
50	0
51	0
52	## END
53	## N-I dash STDOUT:
54	1
55	0
56	## END
57
58	#### Invalid trap invocation
59	trap 'foo'
60	echo status=$?
61	## stdout: status=2
62	## OK dash stdout: status=1
63	## BUG mksh stdout: status=0
64
65	#### exit 1 when trap code string is invalid
66	# All shells spew warnings to stderr, but don't actually exit! Bad!
67	trap 'echo <' EXIT
68	echo status=$?
69	## stdout: status=1
70	## BUG mksh status: 1
71	## BUG mksh stdout: status=0
72	## BUG dash/bash status: 0
73	## BUG dash/bash stdout: status=0
74
75	#### trap EXIT calling exit
76	cleanup() {
77	echo "cleanup [$@]"
78	exit 42
79	}
80	trap 'cleanup x y z' EXIT
81	## stdout: cleanup [x y z]
82	## status: 42
83
84	#### trap EXIT return status ignored
85	cleanup() {
86	echo "cleanup [$@]"
87	return 42
88	}
89	trap 'cleanup x y z' EXIT
90	## stdout: cleanup [x y z]
91	## status: 0
92
93	#### trap EXIT with PARSE error
94	trap 'echo FAILED' EXIT
95	for
96	## stdout: FAILED
97	## status: 2
98	## OK mksh status: 1
99
100	#### trap EXIT with PARSE error and explicit exit
101	trap 'echo FAILED; exit 0' EXIT
102	for
103	## stdout: FAILED
104	## status: 0
105
106	#### trap DEBUG
107	debuglog() {
108	echo "debuglog [$@]"
109	}
110	trap 'debuglog x y' DEBUG
111	echo 1
112	echo 2
113	## STDOUT:
114	debuglog [x y]
115	1
116	debuglog [x y]
117	2
118	## END
119	## N-I dash/mksh STDOUT:
120	1
121	2
122	## END
123
124	#### trap RETURN
125	profile() {
126	echo "profile [$@]"
127	}
128	g() {
129	echo --
130	echo g
131	echo --
132	return
133	}
134	f() {
135	echo --
136	echo f
137	echo --
138	g
139	}
140	# RETURN trap doesn't fire when a function returns, only when a script returns?
141	# That's not what the manual syas.
142	trap 'profile x y' RETURN
143	f
144	. spec/testdata/return-helper.sh
145	## status: 42
146	## STDOUT:
147	--
148	f
149	--
150	--
151	g
152	--
153	return-helper.sh
154	profile [x y]
155	## END
156	## N-I dash/mksh STDOUT:
157	--
158	f
159	--
160	--
161	g
162	--
163	return-helper.sh
164	## END
165
166	#### trap ERR and disable it
167	err() {
168	echo "err [$@] $?"
169	}
170	trap 'err x y' ERR
171	echo 1
172	false
173	echo 2
174	trap - ERR # disable trap
175	false
176	echo 3
177	## STDOUT:
178	1
179	err [x y] 1
180	2
181	3
182	## END
183	## N-I dash STDOUT:
184	1
185	2
186	3
187	## END
188
189	#### trap 0 is equivalent to EXIT
190	# not sure why this is, but POSIX wants it.
191	trap 'echo EXIT' 0
192	echo status=$?
193	trap - EXIT
194	echo status=$?
195	## status: 0
196	## STDOUT:
197	status=0
198	status=0
199	## END
200
201	#### trap 1 is equivalent to SIGHUP; HUP is equivalent to SIGHUP
202	trap 'echo HUP' SIGHUP
203	echo status=$?
204	trap 'echo HUP' HUP
205	echo status=$?
206	trap 'echo HUP' 1
207	echo status=$?
208	trap - HUP
209	echo status=$?
210	## status: 0
211	## STDOUT:
212	status=0
213	status=0
214	status=0
215	status=0
216	## END
217	## N-I dash STDOUT:
218	status=1
219	status=0
220	status=0
221	status=0
222	## END
223
224	#### eval in the exit trap (regression for issue #293)
225	trap 'eval "echo hi"' 0
226	## STDOUT:
227	hi
228	## END